Joseph



(No Model.)

J. JAUGH.

CENTRAL DRAFT LAMP.

Patented Sept. 2l, 1897.

UNITED STATES PATENT OEEICE.

JOSEPH .TAUCIL OF MERIDEN, CONNECTICUT, ASSIGJOR TO THE BRADLEY d:I'IUBBARD MFG. CO., OF SAME PLACE.

CENTRAL-DRAFT LAM P.

SPECIFICATION forming part of Letters Patent No. 590,415, datedSeptember 21, 1897. Application filed September 25, 1894. Serial No.524,028. (No model.)

To @ZZ whom it may concern:

Be it known that I, JOSEPH JAUCH, of Meriden, in the county of New Havenandv State of Connecticut, have invented a new Improvement inCentral-Draft Lamps; and I do hereby declare the following, when takenin connection with the accompanying drawings and the letters ofreference marked thereon, to be a full, clear, and exact description ofthe saine, 1o and which said drawings constitute part of thisspecication, and represent, in-

Figure l, a view partly in elevation and partly in vertical section of alamp having a wick-adjuster constructed in accordance with my invention;Fig. 2, a detached sectional View of the draw-bar and itsoperating-pinion and bearing-tube; Fig. 3, a vdetached plan view of thewick-carrier; Fig. 4, asimilar view of the draw-ba1'5`Fig. 5, a brokenview thereof, zo in vertical section, on the line a b of Fig. 4;

Fig. 6, an enlarged broken view of the drawbar, showing its provisionwith an independently-formed handle. Y

My invention relates to an improvement in wick-adjusters forcentral-draft lamps, the object being to provide a simple, convenient,and effective wick-adjuster of the combined screw and push-and-pulltype.

With these ends in view my invention con- 3o sists in certain details ofconstruction and.

combinations of parts, as will be hereinafter described, and pointed outin the claim.

In carrying out my invention as herein shown I employ a draw-barpreferablyT made 3 5 from a single piece of wire bent toform twoparallel legs A and A', of which the former is longer than the latterand having the loop or bend connecting the upper ends of the said legsflattened in a plane of a right angle to 4o them to form a handle A2,the edges of which -project beyond the legs and which presents a fiatsurface for the application of the iinger in pushing down the draw-bar.By constructing the draw-bar with such a handle it is much moreconvenient to use both in pushing it down and in pulling it up than adrawbar made of wire andhaving a simple rounded bend or loop, whichaffords no convenient resting-place for the finger, which is apt to slipoff 5o one side or the other.

Instead of forming the flat handle by flattening the loop or bend of thewire, as shown,

I may make a sheet or cast metal handle and apply it to the bent orlooped port-ion of the wire, as shown in Eig. 6,'wherein the draw- 55bar is shown as provided with an independently-formed sheet-metal handleA3. The said draw-bar is located in a fiat bearing-tube B, in which itplays up and down, and which is mounted in the top of the lamp-fount C,so 6o as to present one of its flat faces instead of its edge outward.

The two legs of the draw-bar are sufficiently separated from each otherto receive between them the stem D of the'knurled operating- 65 buttonD, the said stein being leaved, so as to form an integral pinion tocoact with the teeth a of the rack formed upon the inner face of thelong leg A of the draw-bar. If preferred, the pinion might be made inde-7o pendent of and applied to the said stem. The said stem has bearing ina horizontally-arranged hub E, applied to and projecting radiallyoutward from the outer face of the fiat bearing-tube B. The said sternalso extends through the inner face of the tube and projects beyond thesame for the'reception of a retaining-washerE. I do not, however, limitmyself to constructing the button and stem in the exact mannerdescribed, though I de- 8o sign to arrange themso that the button shallextend radially outward with reference to the lamp-forint, for I regardthat arrangement of it most favorable to its convenient use.

If desired, the draw-bar may be constructed 8 5 So that its two legswillhave to be sprung toward each other a little in order to get them intothe bearing-tube, whereby enough frictional resistance to its movementup and down in the tube will be developed to assist in hold- 9c ing itin place in any desired position of adjustment.Idonot,however,considerthis construction of the draw-bar necessary,inasmuch as the friction 0f. the wick F upon the centraldraft tube G isordinarily sufficient to inaintain the wick in any of its adjustments.

Y By forming the rack upon the long leg of the draw-bar I secure adirect drawing and pushing action upon the wick-carrier, whereby thepower used to turn the operating-butroo ton is employed to, the bestadvantage and with the minimum strain upon the parts of the adjustingdevice.

By reference to Fig. 2 of the drawings it will be seen that the leavedstem or pinion of the operating-button holds the long leg of thedraw-bar against one end of the tube, while the short leg of the drawbarhas a long bearing against the other end thereof.

The extreme lower end of the long leg A of the draw-bar is threaded, asat a', to adapt it to be screwed into the internallythreaded bushing H,upon which the jaws I and I of the wick -carrier are mounted. As hereinshown, the jawI turns freely upon the bushing, while the jaw I isrigidly connected with the lower end of the bushing H through themedium'of a collar H', fastened thereto and upset into a notch i, formedin the jaw, as shown in Fig. 1. A spring J, formed from a single pieceof wire and connected with both of the jaws, is provided for normallymoving the jaws toward each other, and hence causing them to grip thewick. I do not, however, limit myself to constructing the wick-carrier,comprising the jaws I and I', the bushing H, and the spring J, in anyparticular manner.

I provide the fount with a depending wedge K, arranged to pass betweenthe two jaws of the wick-carrier for spreading the same apart andreleasing the wick when the carrier is elevated for the purpose ofbringing the jaws into engagement with the wedge.

I may now call attention to the fact that by locating the rack upon thelong leg of the draw-bar instead of the short leg thereof I am able tomake the rack do the double duty of not only raising and lowering thewick as required, but also of spreading the jaws of the wick-carrier, asrequired, for the release of the wick. On the other hand the short legof the bar cannot perform both of these functions, as it could notaccommodate a rack long enough to not only provide for the adj ustmentof the wick, but also for the spreading of the jaws of the wick-carrier,the short leg of the bar being limited in length by the problem ofassembling the device as well as dismembering it, as will hereinafterappear. The short leg A of the draw-bar I construct of such length withrespect to the other parts of the device that after the lower end of thelong legA of the bar has been fully connected with the wick-carrier thelower end of the said short leg will project a little below the upperedge of the flat bearing-tube B, so that the upper end of the draw-barhas to be sprung sidewise sufficiently to lift the lower end of theshort leg of the bar to permit the said leg to enter the upper end ofthe tube, after which the draw-bar springs back or is sprung back into aperpendicular position, whereby it is permanently assembled with thelamp-fount, for afterward no turning of the operatingbutton D can raisethe draw-bar high enough to lift the short leg of the draw-bar out ofthe bearing-tube, nor can the draw-bar be lifted will ever so misuse itas to spring the drawbar to one side in the same manner that itwas'sprung in its original assemblance with the lamp. When the lower endof the long leg of the draw-bar is threaded to adapt it to be connectedwith the carrier, the carrier 1s placed within the fount and the longleg of the draw-bar entered thereinto through the dat bearing-tube,after which the draw-bar is turned so as to screw its long leg into thecarrier until the lower end of the short leg of the draw-bar is drawndown to a point below the upper end of the bearing-tube, the carrierbeing at this time in its highest position in the fount. The projectingupper end of the draw-bar is then sprung, as set forth, for theintroduction of the lower end of the short leg of the draw-bar into thebearingtube.

I would therefore have it understood that I do not limit myself to theexact construction herein shown and described, but hold myself atliberty to make such changes and alterations as fairly fall within thespirit and scope of my invention.

I am aware, however, that United States Patent No. 2,514, granted March28, 1842, to Carr, for an improvement in lamps, shows that it is old toconnect the wick-carrier of a. lamp of the Argand type with the lowerend of the long leg of a bowed draw-bar, the short leg of which isconstructed upon its inner face with a rack adapted to be taken into bya pinion located upon a short shaft furnished with a finger-button andjournaled in bearings permanently connected with the fount of the lamp;but in this connection I desire to call attention to the fact that Carrlocates his rack upon the short leg of his bowed drawbar, whereas Ilocate my rack upon the long leg of my bowed draw-bar, and thus adaptthe same to perform the twofold function of adjusting the wick up anddown within sufciently-extended limits and also provide for utilizingthe bar for spreading the wick-jaws apart to release the wick therefrom.Therefore by my particular construction I impose an additional officeupon the device.

I am further aware that a carrier consisting of two gripping-jaws and aspring applied to them so as constantly to urge them to close togetheris old, and, further, that it j is old to separate those jaws todistinguish them from the wick by means of a wedge depending from theupper portion of the lampfount.

I claim- In a central-draft lamp, the combination with a lamp-fount, ofa draft-tube, a wickcarrier comprising two pivotal wick-jaws, a springtherefor, a wedge for spreading the jaws against the tension of the saidspring so as to release the wick, a bearing-tube, an operating-buttonhaving its stem journaled in the Said tube, a pinion mounted upon thesaid stem, and a draw-bar mounted for Vertical reoiprocation in the saidbearing-tube and fount, and consisting of a long leg and a short leg,the lower end of the long leg extending downward into the fount, andbeing connected with the wick-jaws of the wiekcarrier so as to beconcentric with the pivot thereof, and having formed upon it a rackwhich is taken into by the said pinion, which through the said long legof the draw-bar operates the wick-carrier not only for raising andlowering the wick, but also for drawing the wiekjaws against thesaidwedge for separating them to release the wick, and the said shortlegof the draw-bar being of a length so that in the highest position of thedrawbar the lower end of the said leg will extend slightly below theupper end of the said bearing-tube into and out of which it must besprung by bending the bar when the same is assembled with and removedfrom the lamp.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JGSEPH JAUCH.

Vith esses:

C. D. NEWBURY, lF. A. LEEDS.

